I think I may have been premature on the last post. Phone seems to be back to normal.
When I took almost all of the apps (including chomp) off the ignore list, I would let the phone go to sleep, wake it up, and then hit the app kill button. It would come up saying "0 apps killed, 90M memory available." I've never had that much available memory. My understanding of "0 apps killed" is that nothing was running/updating in the background. And the battery drains.
So I put all the apps that I took off the ignore list back onto the ignore list. (Didn't change update intervals.) Now I hit the app kill button and it says "0 apps killed, 39M memory available." That is what I'm used to seeing.
So, when I turned everything off, I had the most memory available I have ever had and the battery drained in an hour. I put a bunch of apps back on the ignore list, have one third of the available memory, and my battery last all day, through moderate use.
Why is that? Does it seem counterintuitive to anybody else?